Improvement in the manufacture of picks



3 Sheets-Sheet 1.

J. BES LER. Manufacture of Picks, 8150 No. 204,417; Patented June 4,I878.

\ NPETERS, PHOTO-LITHORAPHER, WASHlNGTON. o c.

I 3 Sheets-Sheet 2.

J. BESLER. Manufacture of Picks, 8w No. 204,417. Patented June 4,1878.

.pgrus, pnnmLlTNnGRAPHER, WASHINGTON n C 3 Sheets-Sheet 3.

J. BES'LER.

Manufacture of Picks, 8w No. 204,417. Patented June 4,1878.

UNITED STATES PATENT QFFIGE.

JOHN BESLER, OF PITTSBURG, PENNSYLVANIA.

'IMPROVEMENT IN THE MANUFACTURE OF PICKS, 80C.

Specification formin g part of Letters Patent No. 204,417, dated June 4,1878 application filed April 30, 1877.

To all whom it may concern:

Be it known that I, JOHN BESLER, of the city of Pittsburg, in the countyof Allegheny and State of Pennsylvania, have invented new and usefulImprovements in the Manufacture of Picks, Mattocks, and analogousarticles; and I do hereby declare the following to be a full, clear, andexact description thereof.

My invention relates to the manufacture of picks, mattocks, &c., andmore especially to that mode of making them where the eye is formed onthem by means of rolling-dies, which draw out the metal for the eye overa mandrel.

My invention consists in operating upon a rectangular blank in thefollowing way: I take a rectangular bar of iron, heat it, and punch itin the usual way; then force a mandrel into it, and pass it transverselybetween rolling-dies which are convex longitudinally and concave in atransverse direction, and which operate to displace and draw out themetal on both sides of the eye of the blank. I then give it a passbetween oscillating or rolling dies, which are grooved or V-shaped attheir working-faces, and which operate on the edges of the projectionsrolled out at the sides of the eye, and weld them together on themandrel, thus forming a high solid eye. These dies may be mounted in thesame pair of rolls, side by side, forming, in fact, two grooves in therolls. The groove containing the edge dies is cut deep into the roll toadmit of the arms entering, or they may be mounted upon independentrolls or die-carriers. I make a third groove of tapered form for drawingdown the arms or shanks of the pick or mattock.

Referring to the drawings, Figure 1 is an elevation of a pair of rollscontaining dies for making pick-eyes by my method, showing the faces ofthe dies. Fig. 2 is the same, showing the edges of the dies.

The diagrams on Sheet 3 of the drawings illustrate a blank for a pick inits various stages. E represents the original bar of iron. E shows thebar punched; E the form it assumes on inserting the mandrel; E itscondition after the first pass through the rolls, (showing the drawn-outends trimmed;) E its appearance after the second pass, and E thefinished blank ready to receive the steel points.

A A are the dies for drawing out the eye. The bar having been punchedand a mandrel inserted, it is passed transversely between these dies, bywhich the metal is drawn out on both sides of the mandrel.

The dies B B are then made to act on the edges of the metal drawn out bythe dies A, and thus weld the two sides together, so as to form a longsolid eye. The working-faces of these dies B B are V-shaped, as shown,so as to bring the edges of the metal together, and the surface of therolls is cut out or deeply grooved at G O to leave space for the arms ofthe blank. The arms of the blank are then drawn out on the tapered diesD D, and the pick or mattock is completed.

Having thus described my invention, I claim The herein described methodof making picks or mattocks, consisting in first drawing out the metalfrom a rectangular blank over a mandrel to form the sides of the eye,then welding these sides together in another pair of dies, and finallydrawing out the arms of the blank, all substantially as set forth.

In testimony whereof I, the said JOHN BES- LER, have hereunto set myhand.

JOHN BESLEB.

Witnesses 'l. B. KERR, WM. WUSTENHAGEN.

